Yes I have. Both original and Remastered versions. It's my dad's favorite series. I like it, and it has some great episodes. But some of the concepts are very formulaic in a way that I don't enjoy.

I still get a kick out of watching the episodes, but I don't actively seek them.

Which "concepts" are "formulaic"?

oh come on, I think even dedicated fans of TOS would admit they relied on formulas A LOT.

How about:

-Kirk battles a supercomputer(and tricks it with logic puzzles)?
-they beam down to a parallel Earth planet?
-they face an alien creature with God-like powers, or that practically IS a God?

I think it's unquestionable that TOS relied a lot on some key plot formulas a lot, but that was probably a result of a lot of different factors.(the parallel Earth culture plot was very handy to save money, for example)